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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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The nucleolus, at the center of the cell's nucleus, is the most prominent organelle without a membrane. It was once thought that it disappeared during cell division then reappeared. Since it exists in solution, in reality, it gets shaken up into pieces that come back together as one piece again. Credit: CNX OpenStax / Download for free at http://cnx.org/contents/e42bd376-624b-4c0f-972f-e0c57998e765@4.4 / commons license
